| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528337000 | Phosphorus- or sulfur-containing reactant | 9 |
| 20100137553 | Novel thiophene-containing compound and thiophene-containing compound polymer, organic electroluminescent device, production method thereof, and image display medium - A thiophene-containing compound polymer represented by | 06-03-2010 |
| 20100228002 | SELF-CROSSLINKING POLYAMIC ACID, SELF-CROSSLINKING POLYIMIDE, METHOD OF MANUFACTURING SELF-CROSSLINKING POLYIMIDE, AND SELF-CROSSLINKING POLYIMIDE FILM INCLUDING THE SELF-CROSSLINKING POLYIMIDE - Provided are a self-crosslinking polyamic acid being a condensation reaction product of melamine-based material, an acid anhydride, and a diamine compound, a self-crosslinking polyimide being a condensation and imidization reaction product of melamine-based material, an acid anhydride, and a diamine compound, a method of preparing the self-crosslinking polyimide, and a self-crosslinking polyimide film including the self-crosslinking polyimide. | 09-09-2010 |
| 20110301324 | LIQUID CRYSTAL DISPLAY AND METHOD FOR MANUFACTURING SAME - A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films | 12-08-2011 |
| 20120046438 | POLYAMIDE MANUFACTURING PROCESS - A method for making polyamide is described. More particularly, a method for making a polyamide from at least one diacid and one diamine, that includes a step of concentrating an aqueous solution of diacid and diamine salt up to a salt weight concentration higher than 85%, and a polymerization step up to a desired polymerization degree is described. | 02-23-2012 |
| 20120283407 | New polyamide, polyimide or polyamide-imide comprising dibenzodiazocine units - The invention relates to polymers (P) of amides, imides, amides-imides or their derivates. The polymer (P) comprising recurring units (I) of one or more structural formula(e): -A-B-C-D- (I), wherein, A and C, identical or different from each other and from one structural formula to another, independently represent an amido group an imido group of formula or a mixture thereof; B, identical or different from one structural formula to another, is independently selected from the set consisting of C | 11-08-2012 |
| 20140066588 | PRODUCTION OF POLYAMIDES BY POLYCONDENSATION - In a process for producing polyamides by polycondensation of polycondensable polyamide-forming monomers and/or oligomers in reaction mixtures comprising same, which may be water-containing but are free from organic solvents, the polycondensation is effected in an agitated reactor under agitation in a first step in the liquid phase and after a phase change taking place during the process in the same reactor is effected in a subsequent second step in the solid state, wherein the temperature in the reactor is below the melting point of the polyamide in the second step at least. | 03-06-2014 |
| 20140235816 | (PER) FLUOROPOLYMER COMPOSITION - The present invention relates to (per)fluoropolymer compositions, in particular to (per)fluoropolyether compositions comprising: —a (per)fluoropolymer having more than two carboxy groups and —a polyamine. The invention further relates to processes for preparing said compositions and to moulded articles obtained from said compositions. | 08-21-2014 |
| 20140350214 | OPTICAL RETARDATION FILM AND METHOD OF PRODUCTION THEREOF - The present invention relates generally to the field of organic chemistry and particularly to the optical retardation films for liquid crystal displays. The present invention provides an optical film comprising a substrate having front and rear surfaces, and at least one solid retardation layer on the front surface of the substrate. Said solid retardation layer comprises rigid rod-like macromolecules comprising n organic units of the first type having general structural formula I and | 11-27-2014 |
| 20150328594 | POLYIMIDE MEMBRANES WITH VERY HIGH SEPARATION PERFORMANCE FOR OLEFIN/PARAFFIN SEPARATIONS - A copolyimide membrane is provided by the present invention that is effective in separating olefins and paraffins. The membrane with very high selectivity and permeability in the present invention is used in a process for separating olefins from a mixture of olefins and paraffins, the process comprising providing a copolyimide membrane with very high selectivity and high permeability described in the present invention which is permeable to said olefin; (b) contacting the olefin/paraffin mixture on one side of the copolyimide membrane with very high selectivity and high permeability described in the present invention to cause the olefin to permeate the membrane; and (c) removing from the opposite side of the membrane a permeate gas composition comprising a portion of the olefin which permeated through the membrane. Ethylene, propylene, butene, or pentene is separated from ethane, propane, butane, or pentane, respectively with up to 99 mole % olefin content in the permeate. | 11-19-2015 |
